Improvement in side-hill plows



H. r. & e. F. SHAW.

SIDE-HILL PLU'W.

No.177,080. Patented May 9,1876.

N- PETERS, PHOTQ-LITHOGRAPHER. WASHINGTON, D C.

UITED STA-Ins PATENT OFFICE HENRY F. SHAW ANDGEORGE'F. SHAW, OF BOSTON,'MASSAGHUSETTS.

lMPROVEMENT-IN SIDE-*HJLL PLOWS.

' Specification forming part-of Letters Patent No. l7%0S0..dated May 9,1876; application filed i December 24, 1875.

To all whom it may'ooncer-n: v v

Be it known that we, HENRY F. SHAW and GEORGE F. SHAW, both of Boston, county of Suffolk and State of Massachusetts, have invented anew and useful Improvement in Side- Hill Plows, which improvement is fully set forth in the following specification, reference being had tothe accompanying drawings.

Our invention relates to that class of sidehill plows which have two shares and moldboards, and in which the' shares and moldboards are changed from one side of the beam to the other by swinging the beam on a' vertical pivot.

Our invention has for its object, first, to give to the wings of the mold-boards a movement in addition to the movement of passing from one side of the beam to the other, namely, to swing the two wings, .united as one piece, on a pivot, and in. the direction of a plane so inclined to a vertical plane that the forward wing shall be swung upward and inward toward the beam, and the rear or work- 1ng wing downward and outward from the beam secondly, a device for causing this additional movement of the wings by the turning of the beam thirdly, an arrangement for locking the wings in position.

In the drawings, Figure 1 shows a side elevation of a sidehill plow embodying my invention, with the mold-boardside brought to view. Fig. 2 is a plan of the plow as represented in Fig. 1. Fig. 3 is a side elevation of the plow-of Fig. 1, but with the body of the plow turned round, bringing the land side to view. Fig. 4 is a section taken-on and showing the parts to be seen to the right of the line 1. l of Fig. 1.

The two shares A A, together with part of two mold-boards, B B, are so constructed and joined as to form one piece similar to two plows, with the mold-boards shortened and the wings of the mold-boards cut ofi, joined back to back. The shares, and so much of the mold-boards as are in this piece, may be so formed as to give the best shape to the plow when working on either side of the beam. The shares and mold-boards of this pieceare firmly connected to a vertical stem or support, a, to which the beam 0 is pivoted at b, to swing thereon in a horizontal plane. The

wings D D for the mold-boards are united as one piece, which is connected to the support a at-o, so that the swinging of the beam .will

beam, passing under the rear part of thebeam. I

The wings D D have another movement, which is in the direction of a plane slightly inclined to a vertical plane, and is about the pivot 0. Two plates, the one 01 joined to or a part of the wing-piece, the other e joined to or a part of the support a, are "held snugly together by the stud c, which forms the pivot for this additional movement of the wings, the plane of contact of the two plates 01 and 6 being slightlyinclin'd to a vertical plane when.

the wings D D are swung on the pivot o. The efl'ect of this motion'is to bring the forward wing in toward-the beam and up out of the way, while the rear wingis brought down and outward into the best position for working on either side of the beam, as desired.

, The surfaces of the mold-boards in the wings are formed to have each mold-board, with its wing, of the most approved shape to turn the furrow in the best manner.

Rjgidly attached to the beam-to the rear of the pivot b is the plate f, having an inclined plane, as shown, to act upon the wing-piece, as the latter passes under the beam, to swing the wings on the pivot o and cause them to take the working positions described. Another piece, g, is firmly connected to the beam forward of the pivot b, of suitable shape, as illustrated in the drawing, to lock the wings in position on either side ofthe beam, and to give a firm bearing on the beam and forward share. When the body of the plow is swung into working position on either side of the beam, it is held by the hook h or some equivalent device.

The working of a plow with parts constructed andarranged as shown and described, is natural, easy, and effective. The beam will generally be swung, and this may be done by the team as, after turning one furrow, it turns about, the body of the plow being simply set off for another furrow, the wings taking their position from the movement of swinging the beam; We are able in this plow to give the most approved form to the mold-boards with 7 their wings, to do the best work ascribed to any plow.

It has heretofore seemed dilficnlt to make any side-hill plow do the perfect work of a single plow, and this has arisen from the difficulty of giving the proper curve to the moldhoard and proper length and curve to the 'wing, but with our invention, particularly in giving the motion described to the wings, this difficult-y is overcome. We are also able to bring the land-side and share ofthe plow, on

. whichever side of the beam the work is done, to follow in the best line in relation to the out ter E.

We claim as our invention- 1. In a reversible plow, the wings D D, pivoted at c to move in an inclined plane, whereby in reversing the plow the forward wing may be brought upward and inward, and the rear wing downward andontward into working position, substantially as shown and described.

2. The combination of the beam G,pivoted at b, the wings D D, united as one piece, pivoted at c, and the plate f, with inclined plane,

or its equivalent, whereby the wings are brought into position, all substantially as hereinbefore described. 9

a 3. The combination of the beam, 0, wings D D, and lock g, substantially as and for the purpose hereinbefore set forth.

' HENRY F. SHAW.

GEORGE SHAW.

Witnesses:

EDW. DUMMER, H. EBATHRIOK. 

